Antončić families are Croats and they are mostly from Ogulin area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Ogulin area. In Kranjčići in Labin area every fourth inhabitant had the family name Antončić.
Prevalence
About 160 people with faimily name Antončić live in Croatia today, in 80 households. There were 230 of them in the middle of the past century, and their number decreased by 30 percent. They are located in the most of Croatian counties, in 21 cities and 17 other places, mostly in Zagreb (30), Veli Losinj on the Island of Losinj (15), Modrus in Ogulin area (15), Varazdin (10), and in Omisalj on the Island of Krk (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over thirty times, the first time 1691 in source Catholic Church Parish Records.